Recent progress in laser-based high-repetition rate extreme ultraviolet (EUV) light sources and multidimensional photoelectron spectroscopy enables the build-up of a new generation of time-resolved photoemission experiments. Here, we present a setup for time-resolved momentum microscopy driven by a 1 MHz fs EUV table-top light source optimized for the generation of 26.5 eV photons. The setup provides simultaneous access to the temporal evolution of the photoelectron's kinetic energy and in-plane momentum. We discuss opportunities and limitations of our new experiment based on a series of static and time-resolved measurements on graphene.

中文翻译：

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具有 1 MHz 高谐波极紫外光束线的时间分辨动量显微镜

基于激光的高重复率极紫外 (EUV) 光源和多维光电子能谱的最新进展使新一代时间分辨光发射实验的建立成为可能。在这里，我们展示了一种由 1 MHz fs EUV 桌面光源驱动的时间分辨动量显微镜设置，该光源针对 26.5 eV 光子的生成进行了优化。该设置提供了对光电子动能和面内动量的时间演化的同步访问。我们基于对石墨烯的一系列静态和时间分辨测量来讨论我们新实验的机会和局限性。